The Tor Browser / file comparison
comparison: browser/components/sessionstore/src/TabAttributes.jsm
browser/components/sessionstore/src/TabAttributes.jsm
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 "use strict"; | |
| 6 | |
| 7 this.EXPORTED_SYMBOLS = ["TabAttributes"]; | |
| 8 | |
| 9 // A set of tab attributes to persist. We will read a given list of tab | |
| 10 // attributes when collecting tab data and will re-set those attributes when | |
| 11 // the given tab data is restored to a new tab. | |
| 12 this.TabAttributes = Object.freeze({ | |
| 13 persist: function (name) { | |
| 14 return TabAttributesInternal.persist(name); | |
| 15 }, | |
| 16 | |
| 17 get: function (tab) { | |
| 18 return TabAttributesInternal.get(tab); | |
| 19 }, | |
| 20 | |
| 21 set: function (tab, data = {}) { | |
| 22 TabAttributesInternal.set(tab, data); | |
| 23 } | |
| 24 }); | |
| 25 | |
| 26 let TabAttributesInternal = { | |
| 27 _attrs: new Set(), | |
| 28 | |
| 29 // We never want to directly read or write those attributes. | |
| 30 // 'image' should not be accessed directly but handled by using the | |
| 31 // gBrowser.getIcon()/setIcon() methods. | |
| 32 // 'pending' is used internal by sessionstore and managed accordingly. | |
| 33 _skipAttrs: new Set(["image", "pending"]), | |
| 34 | |
| 35 persist: function (name) { | |
| 36 if (this._attrs.has(name) || this._skipAttrs.has(name)) { | |
| 37 return false; | |
| 38 } | |
| 39 | |
| 40 this._attrs.add(name); | |
| 41 return true; | |
| 42 }, | |
| 43 | |
| 44 get: function (tab) { | |
| 45 let data = {}; | |
| 46 | |
| 47 for (let name of this._attrs) { | |
| 48 if (tab.hasAttribute(name)) { | |
| 49 data[name] = tab.getAttribute(name); | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 return data; | |
| 54 }, | |
| 55 | |
| 56 set: function (tab, data = {}) { | |
| 57 // Clear attributes. | |
| 58 for (let name of this._attrs) { | |
| 59 tab.removeAttribute(name); | |
| 60 } | |
| 61 | |
| 62 // Set attributes. | |
| 63 for (let name in data) { | |
| 64 tab.setAttribute(name, data[name]); | |
| 65 } | |
| 66 } | |
| 67 }; | |
| 68 |
